... no bubble 3.lowcost original material HYW art fence production line 1.Introduction:1) Adopt numerical ... need because of adopt the above technology.3)Fence products has no seam,no bubble,sand ... materials,sand,saw powder,nanameter coagulant .5)High efficiency, for eg. 1.5m high art fence can be ... All the materials needed common jointing materials,sand,saw powder,nanameter coagulant.4)Working fund:2000- ...